[1] After going undrafted in the 2016 NBA draft, Groselle started a professional career in Europe with German team Löwen Braunschweig of the Basketball Bundesliga.

[1] He was a first-team all-conference selection in his last two years at Plano West, and established school records for blocks and rebounds in a single season.

He posted season highs of 8 points and 4 rebounds in the January 14 game against Butler, having made 4 of his 5 field goal attempts.

On December 21, Groselle scored 27 points against North Texas, shooting 8/9 from the field and 11/14 from the free throw line.

[8] During his five years at Creighton, Groselle received several academic honors, being included in the Dean's List and in All-Academic teams both in the MVC and the Big East.

[1] In his four seasons with the Bluejays, Groselle did not attempt a single three-pointer, being exclusively employed as a center playing in the post.

After his senior season with the Creighton Bluejays, Groselle was automatically eligible for the 2016 NBA draft, where he was not selected by any team.

In August 2018 Groselle signed with BC Astana of the VTB United League and the Kazakhstan Basketball Championship.

[13] On July 21, 2021, he signed with Fortitudo Bologna of the Italian Lega Basket Serie A (LBA) and FIBA Basketball Champions League (BCL).

[19] Groselle was called up by Ed Cooley to be part of the United States team at the 2019 Pan American Games in Lima, Peru.

[1] His older brother Michael played with him at Plano West, and was also a Division I player, spending four seasons at The Citadel between 2009 and 2013.